.ir-main-contents {
  padding-left: 40px;
  font-size: 120%;
}

.ir-width-95 {
  width: 95%;
}

.ir-table-wide {
  border-style: none;
  width: 105%;
}

.ir-table-normal {
  border-style: none;
  width: 99%;
}

.ir-td-main {
  border-style: none;
  width: 75%;
}

.ir-td-borderless {
  border-style: none;
}

.ir-section-title {
  margin-top: 1.5em;
}

.ir-float-image {
  float: left;
}

.ir-image-500 {
  width: 500px;
}

.ir-image-400 {
  width: 400px;
}

.ir-image-gap {
  margin-left: 10px;
  margin-right: 10px;
}